docs: fix example dependency declaration syntax

[stdavis]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (59d8c6a) to head (8c924e9).
Report is 26 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #58   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines            9         8    -1     
=========================================
- Hits             9         8    -1     

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